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A fracture in the Earth's crust that shows signs of movement
Blind Fault
When one fault line doesn't reach the surface
Ground failure
where the ground becomes very soft, due to the shaking, and acts like a liquid, causing landslides, spreading, and settling
Ground motion
When the ground is moving
Harmonic tremor
long-duration release of seismic energy, accompanies a volcanic eruption
Inter-plate Earthquake
An earthquake that occurs at a plate boundary
Intra-plate Earthquake
an earthquake that occurs in the interior of a tectonic plate
Isoseismic Line
A line connecting points on the earth's surface at which earthquake intensity is the same. (usually a closed curve around the epicentre)
The sliding down of a mass of earth or rock from a mountain or cliff